In this work we concentrate on the so called kinetic scheme employed
in the fits of Refs. [1]}, [2]}, [3]}.
In this scheme we adopt the kinetic
mass [4]}, [5]}, [6]}, [7]} for the
bottom quark using
\(m_b^{\mathrm {kin}}(\mu )= m_b^{\mathrm {OS}}-[\overline{\Lambda }(\mu )]_{\mathrm {pert}}-\frac{[\mu _\pi ^2(\mu )]_{\mathrm {pert}}}{2m_b^{\mathrm {kin}}(\mu )} -O\left( \frac{1}{(m_b^{\mathrm {kin}})^2} \right),\) 
